| 7 | | FFmpeg can support four AAC-LC encoders (`aac`, `libfaac`, `libfdk_aac`, `libvo_aacenc`) and two AAC-HE encoders (`libaacplus` and `libfdk_aac`). `libaacplus`, `libfaac`, and `libfdk_aac` are considered "non-free", and are therefore non-redistributable, meaning you may have trouble finding a build that supports these. Of course you can resolve this by [[CompilationGuide|compiling ffmpeg]]. |
| | 7 | FFmpeg can support four AAC-LC encoders (`aac`, `libfaac`, `libfdk_aac`, `libvo_aacenc`) and two AAC-HE encoders (`libaacplus` and `libfdk_aac`). Although they are all open source, the licenses of `libaacplus`, `libfaac`, and `libfdk_aac` do not provide every freedom of the GPL license (used by other libraries commonly used with ffmpeg), and it is therefore believed that the GPL does not permit redistribution of binaries containing code licensed under these licenses when GPL-licensed code is also included. Therefore these encoders have been designated as "non-free", and you may have trouble finding a pre-built ffmpeg that supports them. This can be resolved by [[CompilationGuide|compiling ffmpeg]]. |
